Cita APA (7a ed.)

Lennerstedt, I. (1973). Pads, furrows, and papillae in the foot of birds. [s.n.].

Cita Chicago Style (17a ed.)

Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. Lund: [s.n.], 1973.

Cita MLA (8a ed.)

Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. [s.n.], 1973.